Carbureter



Pafented Apr. 18, I899.

A. M, LARA. CARBURETER.

lAppLio-tion filed :ul' 2a. 1898.)

2 SheetsSheal I.

(No Model.)

JJ' y a: ZZZ;

Patented Apr. 18, 1899.

No. 623,32l. A. M. LARA.

CARBURETER 2 Sheets-$heei 2.

[Application filed. July 25, 1898.)

(No ldndel.)

UNITED STATES PATENT OFFICE.

.ARTHUR M. LARA, OF MINNEAPOLIS, MINNESOTA.

CARBURETER.

SPECIFICATION forming part of Letters Patent No. 623,321, dated April 19, 1899.

' Application filed July 25, 1898. Serial No. 686,780. \No model.)

To ail whom, it may concern:

Be it known that I, ARTHUR M. LARA, a citi- '/.en of the United States of America, residing in the city of Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Carburetors, of which the following is a specification.

Myinvention relates to apparatus charging or carbureting 'air with gasolene or other volatile fluid and forming a fixed gas, and has for its object the provision of apparatus which shall be extremely simple and cheap in construction, positive and efficient in operation, and in which all danger of leakage or explosion is eliminated.

To these ends my invention consists in a suitable gasolene-supply, a supply of air under pressure, and means whereby a stream of air under pressure is brought into conjunction with gasolene, the air being substantially surrounded by gasolene at the point of introduction of gasolene to the air current or stream and thereafter thoroughly admixed and carbureted therewith, suitable means being provided for storing the resultant gas or for d rawingoff .the same as formed.

My invention consists, further, in various other features, combinations of parts, and constructions, all hereinafter fully explain ed, and particularly pointed out in the claims,

and will be more readily understood by ref-' erence to the accompanying drawings, formin g a part of this specification, and in which- Figure 1 is a perspective view of an apparatus embodying my invention, portions thereof being shown in section to illustrate the interior construction. Fig. 2 is a sectional view taken on line X X of Fig. 1, looking in the direction of the arrows.- Fig. 3 is a perspective View of my carbnreter. Fig. 4 is a sectional view thereof, taken on the line X X of Fig. 3 and looking in the direction of the arrows.

As shown in the drawings, I provide a suit able air-tight tank composed of the cylindrical shell 2, formed ofsheet metal or other suitable material, and two heads 3 4, and is divided into two air-tight compartments or chambers 5 and 6 by the partition 7, as shown for the purpose hereinafter mentioned.

in Fig. 1. This partition is located at about the center of the tank and extends lengthwise thereof nearly to the heads 3 and 4, which form the ends of the tank. The partition 7 is carried down parallel to the head 4%, close thereto, leaving only snfiicient room between the downwardly-extending part of the partition and the head 4. for the insertion therebetween of a washer or packing-ring 8,

The heads 3 and 4 are of cast metal, and the ends of the shell are swelled into them, forming air and water tight joints. Near the bottom of the downward extension of the partition 7 a circular opening is provided in said partition, and into this the screw-threaded end of apipe 9 is inserted,being screwed thereinto. A suitable packing-ring or washer 8 is then slipped over thepipe land the head 4 slipped over the .pipe, which passes through an openin g in the head which coincides with the opening in the downward projection of the partition. A jam-nut 10 is then slipped over the pipe 9 and is screwed upon the thread of the pipe until it bears against the boss about the opening in the head 4, thus drawing the head and packing-ring 8 tightly against the partition 7 and naking water and air tight joints between the head 4, packing 8, pipe 9, and partition 7. The pipe 9 is connected, as shown, with a pipe leading from the air-compressor. Near the top of the head 4 a pipe 11 is screwed into a threaded opening in the head and a pipe connecting with the servicemain connected therewith. I have shown an altitude pressure-gage of common form in connection with this service-pipe, by means of which the pressure of gas may be ascertained.

The partition 7 extends nearly the full length of the tank and is carried down parallel with the head 3 at a sufficient distance therefrom to permit the insertion of a carbureter 20 between the head 3 and the partition 7. Below the carbureterthe partition 7 extends at right angles toward the head 3 until close thereto and thence extends down to the inner edge of the shell 2, as shown in Fig. 1. A pipe 12 extends from the chamber 5 through a suitable opening in the partition 7 and through a suitahloo mnin in the head iLntul a packing S is interposed hetu'et'en the partition 2 and the head Ii altoul this pipe 1:3, and a jamnltL it! is slippt'd uvor the end of the pipe l1! and screwed upon the thread thereof, drawing the head 3 and packingitting up against the partition 7, tnakinuau air and water tightjoint. A pipe I3 is councctcd to the pipe 12 hyu suitable union 1-3. The pipe 13 extends fora short distance stmight. away and thence upward at a right. angle to a vertical check lfiof ordinary coast ruetion. From thence the pipe 13 extends up a short disi-anco and extends at. wright, angle toward the tank. A pressure reducer or governor 16 of the ordinary or any preferred construction is provided in connection therewith. A pipe 17 extends from the head I! and is connected with the pipe i i. The pipe 17 leads into a duct 18, the head being elnuuhcrcd or cored out to form the same. This chamber leads down the head to a point slightly past, the center thereof. Near the bottom of this chamber or duct. 18- is provided an opening which is screw-threaded, and into this opening the inlet-pipe 1E oi the carhurcter 20 is screwed. The eurbureter Z0 is of the form shown best in Figs. 2, 3, and 4, wherein will be secnthat the inlet. 19 opens into a long cylindrical chnmberBO', extending the length of the car hureter. A series of ducts 21 lead from the chamber 20 and connect with the pipes 23, inserted into the seat. 24, provided therefor at the top of the carburetor. The pipes are preferably soldered in place. Two series of ducts 2:2 22, one series on each side of the ducts 21, extend from the chamber 6 to the ducts 21, the opposite ducts 22 opening into the duct 21 atapoint opposite each other. The pipes 23 extend up a short distance and then arecurvcd and run along the top of the partition 7, resting thereon, to the other end of the tank. Thence the pipes :23 are beat; up and extend to a height; above the extreme height of the gasolenc in the chamher 6.

A supply-pipe :25, conuectcd with a suit,- able gasolenesupply, connects with the valve E36, which in turn is connected with an opeuing 27 in the tank. By this means gasolcno is fed into the gasolcne-chanther ti. A gasolene-gage 28, the construction of which is similar to that of an ordinary water-gage, is provided on the head 3:. A gusolenc-inlet 29 and an air inlet and outlet 30 are provided, respectively, in thehcad 3 in to the chamber 6 and the chamber 18 in connection with this gage 28.

The operation of myapparatus is asfollows: A qu'antityof gasolcnc is supplied to the chamhorti through the pipe 25, valve .36, and inlet 27. The gasolene entirely covers the carburctcr 2H and covers the pipes 533 as they extend from the carburetor up along the partition 7. The upturned ends of the conductorpipcu Zilcxtentl nplhrough the body of gasoloue toward the input the chamber 1;. From an air-cumprcssoruquantilyoi'uir u ndotpres sure is fin-cod through thesupply-pipc 9 into the air-ehutnher5. l l'lllll this chamber 5 the air passes to the pipo l2, thence through the pipe 13, the VOI'Llltfll checkvulve 15, through the pressure governor or reducer 16, through the pipe 17 into the chamber 18 in the head 3. From this chamber 18 the air enters the carburoter through the inlet; 11!. Small streams or currents of air are forced from the chamber :30 of the carburetor through the respective ducts 21 into pipes 23. As the air-cur rents pass through the ducts Bl streams of gasolcno are drawn into the ducts 21 through the ducts 22, and the ail-and gasolene are thoroughly intermingled in the pipes 23 and the air thoroughly carburctcd. It. will be seen that. by this construction the air streams or currents are substantially surrounded by gasalone at the'point of the introduction thereof, and the rapid evaporation of the gasolene and carburization of the air reduce the temper, ture of the air and gasolcnc below the freezing-point, and the vapor formed, though very rich, is a. fixed gas and will not deteriorate by any change in the atmosphcrical conditions, as heat: will expand the same, but will notseparate the vapor into its constituent parts, and it the vapor were again cooled it would be found to be in the same condition as when formed.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a gas apparatus the combination with means for holding or su ppl yingai r u nder pressure, of means for holding a supply of gasolenc or volatile fluid, a carburetor having a chamber 20, air-ducts connected therewith, ducts connected with said gasolcnosupply and with said air-ducts and adapted to substantially surround the stream or currentI of air in each of said air-ducts with gasolene at the points of juncture bctweetrsaid air-ducts and gasolene-ducts, and means whereby said air is thoroughly carhurctcd and carried to a supply chamber or pipe, substantially as described.

2. The combination, in a gas apparatus, of means forholdi ngor supplyingair u utlerpressure, means for holdinga supply of gasolene or volatile fluid, a carburetor having a. chamher 20 and provided with ducts 21 and 2:), pi pcs 23 connected with said duct-s 21 and extending above the supply of gasolcne in said gasolenesupply, and asupply-pipc connected therewith, substantially as described.

2 The combination, with means for holding or supplying air it ndcr pressure, of a tank divided into two compartments 5 and G and having heads 3 and 4, said ail-supply counectcd with said compartment or chamber 5, a second pipe 1; leading from said chatuhcr 5 auul connected with n enrlnu-eterfl l having in tefltimony whereof I have hereunln 5m. duels 2| mu! 22, said duets)? connected witg my hand this #Hst day 0! May, 1898.

said gnsuicne-snpply and opening into sui ducts 2|, pipes .211 cunneelml with said duets ARI LARA 21 and extending above the level of the gasn- In pl'menco of hue in said chamber 6, nsnpply-pipe 25, and FREDERICK S. LYON,

a service-pipe l l, snbstmxtially as described. 'I'HOS. F. Bow 1%. 

